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-rw-r--r--src/qcommon/ioapi.cpp373
1 files changed, 373 insertions, 0 deletions
diff --git a/src/qcommon/ioapi.cpp b/src/qcommon/ioapi.cpp
new file mode 100644
index 0000000..0d22f9f
--- /dev/null
+++ b/src/qcommon/ioapi.cpp
@@ -0,0 +1,373 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+ part of the MiniZip project
+
+ Copyright (C) 1998-2010 Gilles Vollant
+ http://www.winimage.com/zLibDll/minizip.html
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson
+ http://result42.com
+
+ This program is distributed under the terms of the same license as zlib.
+ See the accompanying LICENSE file for the full text of the license.
+*/
+
+
+#include "ioapi.h"
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include "zconf.h"
+
+#if defined(_WIN32)
+# define snprintf _snprintf
+#endif
+
+#ifdef __APPLE__
+/* In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions */
+# define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+# define FTELLO_FUNC(stream) ftello(stream)
+# define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+# define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+# define FTELLO_FUNC(stream) ftello64(stream)
+# define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+#ifndef SEEK_CUR
+# define SEEK_CUR 1
+#endif
+#ifndef SEEK_END
+# define SEEK_END 2
+#endif
+#ifndef SEEK_SET
+# define SEEK_SET 0
+#endif
+
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
+{
+ if (pfilefunc->zfile_func64.zopen64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+ return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+}
+
+voidpf call_zopendisk64 OF((const zlib_filefunc64_32_def* pfilefunc, voidpf filestream, unsigned long number_disk, int mode))
+{
+ if (pfilefunc->zfile_func64.zopendisk64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopendisk64_file)) (pfilefunc->zfile_func64.opaque,filestream,number_disk,mode);
+ return (*(pfilefunc->zopendisk32_file))(pfilefunc->zfile_func64.opaque,filestream,number_disk,mode);
+}
+
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
+{
+ uLong offsetTruncated;
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+ offsetTruncated = (uLong)offset;
+ if (offsetTruncated != offset)
+ return -1;
+ return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+}
+
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
+{
+ uLong tell_uLong;
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+ tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+ if ((tell_uLong) == 0xffffffff)
+ return (ZPOS64_T)-1;
+ return tell_uLong;
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
+{
+ p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+ p_filefunc64_32->zfile_func64.zopendisk64_file = NULL;
+ p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+ p_filefunc64_32->zopendisk32_file = p_filefunc32->zopendisk_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+ p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+ p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+ p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+ p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+ p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+ p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
+static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
+static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
+static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
+static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
+
+typedef struct
+{
+ FILE *file;
+ int filenameLength;
+ void *filename;
+} FILE_IOPOSIX;
+
+static voidpf file_build_ioposix(FILE *file, const char *filename)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ if (file == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)malloc(sizeof(FILE_IOPOSIX));
+ ioposix->file = file;
+ ioposix->filenameLength = (int)strlen(filename) + 1;
+ ioposix->filename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy((char*)ioposix->filename, filename, ioposix->filenameLength);
+ return (voidpf)ioposix;
+}
+
+static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
+{
+ FILE* file = NULL;
+ const char* mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename != NULL) && (mode_fopen != NULL))
+ {
+ file = fopen(filename, mode_fopen);
+ return file_build_ioposix(file, filename);
+ }
+ return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
+{
+ FILE* file = NULL;
+ const char* mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename != NULL) && (mode_fopen != NULL))
+ {
+ file = FOPEN_FUNC((const char*)filename, mode_fopen);
+ return file_build_ioposix(file, (const char*)filename);
+ }
+ return file;
+}
+
+static voidpf ZCALLBACK fopendisk64_file_func (voidpf opaque, voidpf stream, unsigned long number_disk, int mode)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ char *diskFilename = NULL;
+ voidpf ret = NULL;
+ int i = 0;
+
+ if (stream == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)stream;
+ diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength);
+ for (i = ioposix->filenameLength - 1; i >= 0; i -= 1)
+ {
+ if (diskFilename[i] != '.')
+ continue;
+ snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02lu", number_disk + 1);
+ break;
+ }
+ if (i >= 0)
+ ret = fopen64_file_func(opaque, diskFilename, mode);
+ free(diskFilename);
+ return ret;
+}
+
+static voidpf ZCALLBACK fopendisk_file_func (voidpf opaque, voidpf stream, unsigned long number_disk, int mode)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ char *diskFilename = NULL;
+ voidpf ret = NULL;
+ int i = 0;
+
+ if (stream == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)stream;
+ diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength);
+ for (i = ioposix->filenameLength - 1; i >= 0; i -= 1)
+ {
+ if (diskFilename[i] != '.')
+ continue;
+ snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02lu", number_disk + 1);
+ break;
+ }
+ if (i >= 0)
+ ret = fopen_file_func(opaque, diskFilename, mode);
+ free(diskFilename);
+ return ret;
+}
+
+static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ uLong ret;
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = (uLong)fread(buf, 1, (size_t)size, ioposix->file);
+ return ret;
+}
+
+static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ uLong ret;
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = (uLong)fwrite(buf, 1, (size_t)size, ioposix->file);
+ return ret;
+}
+
+static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ long ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = ftell(ioposix->file);
+ return ret;
+}
+
+static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ ZPOS64_T ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = FTELLO_FUNC(ioposix->file);
+ return ret;
+}
+
+static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int fseek_origin = 0;
+ long ret = 0;
+
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR:
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END:
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET:
+ fseek_origin = SEEK_SET;
+ break;
+ default:
+ return -1;
+ }
+ if (fseek(ioposix->file, offset, fseek_origin) != 0)
+ ret = -1;
+ return ret;
+}
+
+static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int fseek_origin = 0;
+ long ret = 0;
+
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR:
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END:
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET:
+ fseek_origin = SEEK_SET;
+ break;
+ default:
+ return -1;
+ }
+
+ if(FSEEKO_FUNC(ioposix->file, offset, fseek_origin) != 0)
+ ret = -1;
+
+ return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ if (ioposix->filename != NULL)
+ free(ioposix->filename);
+ ret = fclose(ioposix->file);
+ free(ioposix);
+ return ret;
+}
+
+static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = ferror(ioposix->file);
+ return ret;
+}
+
+void fill_fopen_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen_file = fopen_file_func;
+ pzlib_filefunc_def->zopendisk_file = fopendisk_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell_file = ftell_file_func;
+ pzlib_filefunc_def->zseek_file = fseek_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+ pzlib_filefunc_def->zopendisk64_file = fopendisk64_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+ pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
generated by cgit (git 2.34.1) at 2024-07-01 16:17:43 +0000